What are the advantages of laying out text in columns? Are there any? I'm trying to think of some but I'm drawing a blank. I find it annoying having to move my focus down a line every 5 words, and then have to scroll up the entire page every time I get to the bottom of the first column (<12" screen). Then why are columns so prevalent in papers? I need to know.
Update: Found this link to answer some of my questions: http://www.codinghorror.com/blog/archives/000618.html. The findings agree with my preference since I'm a slow reader.